1. Product Overview
The BISSELL Little Green Max Pet SmartMix is a portable carpet and upholstery deep cleaner designed for effective spot and stain removal, especially pet messes. It features SmartMix Technology for automatic formula and water mixing, superior suction, and specialized tools for tough stains and pet hair. This compact and lightweight cleaner is ideal for carpets, upholstery, and car interiors.
2. What's in the Box
- BISSELL Little Green Max Pet SmartMix Unit
- Self-cleaning Tough Stain Tool
- Specialized Pet Hair Removal Tool
- 8 oz. trial size BISSELL PET PRO OXY Spot & Stain with Urine Eliminator and StainProtect Technology
3. Setup Instructions
- Prepare the Unit: Place the unit on a flat, stable surface. Ensure the hose is securely wrapped around the base.
- Fill the Clean Water Tank: Remove the clean water tank (typically the larger tank on the right side of the unit). Unscrew the cap and fill with warm tap water up to the indicated fill line. Replace the cap and securely place the tank back onto the unit.
- Add Cleaning Formula to SmartMix Tank: Remove the SmartMix formula tank (the smaller tank on the left side). Fill with BISSELL PET PRO OXY Spot & Stain formula up to the indicated fill line. The SmartMix Technology will automatically mix the correct ratio of formula and water during operation. Securely place the tank back onto the unit.
- Attach Cleaning Tool: Select the desired cleaning tool (Self-cleaning Tough Stain Tool or Specialized Pet Hair Removal Tool) and firmly attach it to the end of the hose.
- Connect to Power: Plug the power cord into a grounded electrical outlet.

Image: Filling the SmartMix formula tank with cleaning solution.
4. Operating Instructions
- Power On: Press the power button located on the top of the unit to turn it on.
- Pre-treat (Optional): For heavily soiled areas, hold the cleaning tool about 1 inch above the surface and press the spray trigger to apply cleaning solution. Allow the solution to sit for 3-5 minutes before proceeding.
- Spray, Scrub, and Suction:
- Place the cleaning tool directly on the stained area.
- Press the spray trigger to dispense cleaning solution while pulling the tool slowly over the stain.
- Release the spray trigger and slowly pull the tool over the area to suction up the dirty solution. Repeat as necessary until the stain is removed and no more dirty solution is being picked up.
- Rinse (Optional): For best results, rinse the cleaned area by filling the SmartMix tank with only warm water (no formula) and repeating the spray and suction steps.

Image: Operating the cleaning tool on a carpeted surface.

Image: Deep cleaning upholstery with the portable cleaner.
5. Maintenance
- Empty Dirty Water Tank: After each use, remove the dirty water tank (the clear tank on the left side of the unit). Carefully carry it to a sink or toilet and pour out the dirty water.
- Rinse Tanks: Rinse both the dirty water tank and the clean water/SmartMix tank thoroughly with warm water. Allow them to air dry before reassembling.
- Clean Tools: Rinse the cleaning tools under warm water to remove any debris or residue. The Self-cleaning Tough Stain Tool can be rinsed by attaching it to the hose and running clean water through the unit.
- Store Unit: Wrap the hose and power cord neatly around the designated storage areas on the unit. Store the unit in a dry, protected area.
6. Specifications
| Feature | Detail |
|---|---|
| Brand | Bissell |
| Model Name | Little Green Max Pet SmartMix |
| Item Model Number | 38572 |
| Item Weight | 8.2 Pounds |
| Product Dimensions | 8.3"D x 12"W x 11.5"H |
| Capacity | 8 ounces (formula tank) |
| Power Source | Corded Electric |
| UPC | 011120274448 |
7. Troubleshooting
If you encounter any issues with your BISSELL Little Green Max Pet SmartMix, please refer to the full user manual provided with your product or visit the official BISSELL support website for detailed troubleshooting guides and FAQs.
8. Warranty and Support
For warranty information, product registration, or to contact customer support, please visit the official BISSELL website or refer to the warranty card included in your product packaging. BISSELL is committed to providing excellent customer service and support for your cleaning needs.





